ci: add/update workflow for autosquash on PRs

Author: wetransformer

.github/workflows/tf-autosquash.yml

@@ -30,7 +30,7 @@ jobs:
           private-key: ${{ secrets.WE_HELPER_GITHUB_PRIVATE_KEY }}
 
       - name: Checkout the repository and persist credentials
-        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
         with:
           token: ${{ steps.app-token.outputs.token || github.token }}
           fetch-depth: 0 # otherwise rebase will fail if PR is not based on the latest commit